dll hack source

/*

Basic DLL

*/

#include <windows.h>
#include <stdio.h>

// Pointers

#define pointer 0x00000000
#define offset1 0x00000000

// Global variables


bool activated = false;
unsigned long ClientOffset;
//unsigned long ingame = 0x1B8B054;
bool* ingame;
HANDLE setting;

void set()
{
    unsigned long address;
    //unsigned long old_p;

    while (true)
    {
        if (*ingame)
        {
            address = ClientOffset + pointer;

            if (IsBadReadPtr((void*)address, 4) != NULL) continue;
            address = *(unsigned long*)address + offset1;

            // Set the address

            if (IsBadWritePtr((void*)address, 4) == NULL)
                *(int*)address = 0;

            //VirtualProtect((void*)address, 4, PAGE_READONLY, &old_p);
        }

        Sleep(1000);// every death it resets, so it is OK
    }
}

void reset()
{
    unsigned long address = ClientOffset + pointer;
    if (IsBadReadPtr((void*)address, 4) != NULL) return;// It is already disabled
    address = *(unsigned long*)address + offset1;
    if (IsBadWritePtr((void*)address, 4) != NULL) return;

    // Here you reset the address

    *(int*)address = 0;// int = 4 bytes
}

void is_activated()
{
    while (true)
    {
        if (GetAsyncKeyState(VK_END) &0x8000)
        {
            if (*ingame)
            {
                if (!activated)
                {
                    ResumeThread(setting);

                    activated = true;

                    Beep(1000, 100);
                }
                else
                {
                    SuspendThread(setting);
                    reset();
                    activated = false;

                    Beep(750, 300);
                }
            }

            Sleep(900);// If he pressed the key longer than 30ms then this will stop him from toggling it again, hopefully
        }
        else Sleep(30);//Not to overload the CPU. He can't press the key shorter than 15ms. 30ms on average
    }
}

void main()
{
    Beep(1000, 100);

    // Could be injected earlier than expected

    while (!(ClientOffset = (unsigned long)GetModuleHandle(NULL)))
        Sleep(100);

    ingame = (bool*)(ClientOffset + 0x1B8B054);

    HANDLE checking;

    try
    {
        if ((checking = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)is_activated, NULL, CREATE_SUSPENDED, NULL)) == NULL)
            throw "Couldn't create a thread to execute within the virtual address space of the calling process.(2)";

        if ((setting = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)set, NULL, CREATE_SUSPENDED, NULL)) == NULL)
            throw "Couldn't create a thread to execute within the virtual address space of the calling process.(3)";
    }
    catch ( LPCSTR error )
    {
        MessageBox(NULL, error, "Error", MB_OK | MB_ICONERROR);
        return;
    }

    //if (SetThreadPriority(setting, THREAD_PRIORITY_BELOW_NORMAL) == NULL) // It can take resources so we need to protect the user from lags
    //  MessageBox(NULL, "Couldn't set thread priority.\nBut the program can still continue.", "Error", MB_OK | MB_ICONERROR);

    bool in_progress = false;

    while (true)
    {
        // Checks if he is in game

        if (*ingame)
        {
            // Want the hack or not want the hack?

            if (!in_progress)
            {
                ResumeThread(checking);
                in_progress = true;
            }
        }
        else if (in_progress)
        {
            SuspendThread(checking);// No need to check out of game
            in_progress = false;//Checking ain't in progress

            if (activated)
                if (SuspendThread(setting) != -1)
                    activated = false;
        }

        Sleep(2000);//Not to overload the CPU
    }

    //char buf[255];
    //sprintf_s(buf, "%d", address);
    //MessageBox(NULL, buf, "ERROR", MB_OK | MB_ICONERROR);
}

bool WINAPI DllMain(HINSTANCE hDLLInst, DWORD fdwReason, LPVOID lpvReserved)
{
    DisableThreadLibraryCalls(hDLLInst);

    if (fdwReason == DLL_PROCESS_ATTACH)
    {
        if (CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)main, NULL, 0, NULL) == NULL) // Creating a new thread in the process "AVA"
        {
            MessageBox(NULL, "Couldn't create a thread to execute within the virtual address space of the calling process.", "Error", MB_OK | MB_ICONERROR);
            return false;
        }
    }
    else if (fdwReason == DLL_PROCESS_DETACH)
    {
        // No need for anything here

    }

    return true;
}